The two-way portion of 3rd Avenue from Center Street to 9th Avenue is five lanes wide. The one-way portion is four lanes from 9th to 14th Street North and three lanes from 14th to between 24th and 25th Street. At this point, the left lane becomes an on-ramp for the Elton B. Stephens Expressway. Throughout the 1970s and most of the 1980s, this on-ramp was the northernmost point to get on the expressway as it did not connect to I-20/I-59 at that time. Third Avenue continues as two lanes under the expressway to Carraway Boulevard. The rest of the road segments east of here are two lanes as well.

History

The initial commercial expansion on 3rd Avenue took place on the south side of the street during the 1880s between 20th and 21st Streets. Third Avenue was also where the first two county courthouses in Birmingham were built (at 21st Street). The courthouse attracted other development to the intersection where it was located, such as the Title Guaranty Building.